JPS6214896A - Washing machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a washing machine in which a pumping channel for passing water in a tank upward and returning it to the tank is provided in an overflow/drainage chamber.

[Technical background of the invention and its problems] Conventionally, in washing machines, an overflow and drainage chamber is formed on the side of the washing tub separated by a removable strainer member. A discharge port body is fixed with screws to the outer periphery of a pump chamber formed with a pump vane and recessed to accommodate the pump vane at the bottom of the washing tank, and a discharge port body is attached to the outlet of the discharge port body to the top of the wash tank. In addition to fitting and connecting the extending pumping pipe, which is a pumping channel, a lint filter is installed at the upper end of the pumping pipe, and the water in the washing tank is lifted upward through the pumping pipe by the pumping action caused by the rotation of the pulsator, and the lint is removed. There is a type of filter that captures lint by passing it through a filter and returns it to the washing tank. By the way, in the above configuration,
When cleaning the water pipe or removing foreign matter that has clogged the drain in the overflow drain room, first remove the strainer member, then loosen the mounting screws on the outlet body and remove the outlet body and water pipe. (Since both are fixed by adhesive,
There was a problem in that it had to be removed (which must be handled as one unit), and that work was extremely troublesome. Therefore, in Utility Application No. 60-63855, the applicant proposed that the strainer member has a trowel-shaped cross section on the back side, and a road wall body was attached by engagement, and the pumping channel was formed by this road wall body and the strainer member. The present application is for a washing machine in which the lower end opening of the pumping channel is fitted into the outlet of the discharge outlet body. However,
With this configuration, when the strainer member is removed, the pumping channel is also removed at the same time, making installation and removal work easier.
Since the pumping channel is composed of two parts: the strainer member and the channel wall, pumping water may When connecting the lower end opening of the channel to the outlet of the discharge port body, the problem that the connection accuracy is poor and a gap may occur has remained unsolved.

[Object of the Invention] The present invention has been made in view of the above-mentioned circumstances, and its object is to enable the members for configuring the pumping channel to be removed from the washing tank together with the strainer member, thereby simplifying the attachment/detachment operation. Gain,
Another object of the present invention is to provide a washing machine that can improve the assembly precision of attaching a pumping channel to a discharge port body.

[Summary of the Invention] The present invention provides a member for forming a pumping channel that is removably attached to a strainer member, and a section of the pumping channel that connects to the discharge port body is arranged on the back side of the strainer member. It is characterized in that it is constructed by integrally forming a U-shaped channel wall portion, and this pumping channel can be connected to the outlet of the discharge port body with high accuracy.

[Embodiment of the Invention] An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. First, in FIG. 2, numeral 1 is a cypress washing tank disposed inside an outer box (not shown), 2 is an operation box arranged at the rear of the upper part of the outer box (not shown), and 3 is formed at the bottom of the washing tank 1. A pulsator 4 is accommodated in the pump chamber 3, and a plurality of pump vanes 5 are formed on the back surface of the pulsator 4. 6
is an overflow drainage chamber formed on the side of the washing tank 1 by bulging the wall outward from the bottom to the top;
This overflow drainage basin 6 is separated from the washing tank 1 by a strainer member 9 consisting of a lower strainer 7 and an upper strainer 8, which will be described later. It communicates with the inside. A well-known drainage mechanism 11 is provided in the overflow drainage chamber 6, and this is moved up and down by an operating device M42a disposed in the operation box 2 to connect the periphery of the drainage port 12 to the annular shape of the connecting port body 13. It is opened and closed by the valve body 14, and the connection port body 13
An overflow pipe 15 is connected in an upright manner to the upper part of the pipe. Reference numeral 16 denotes a discharge port body located on the outer periphery of the pump chamber 3 and screwed to the bottom of the washing tank 1, whose bottom plate portion 16a is connected to the groove-shaped portion 10.
The top surface of the water inlet 17 is closed off, and the first water inlet 17 is closed off.
As shown in the figure, a fitting portion 18 in the shape of a horizontally long box that is open at the top is formed at the outlet 16b. 19 is the pumping channel,
This configuration will be explained below. The lower strainer 7 is
It has a curved plate shape corresponding to the lower corner of the washing tank 1, and a road wall part 20 having a trowel-shaped cross section is integrally formed on the back side of the lower strainer 7 and extends substantially vertically. The inner side of the portion 20 is opened toward the inside of the washing tank 1, and a water passage groove 21 is opened at the upper end. 22 is the water groove 21
The pumping channel 1 is closed by blocking the opening facing into the washing tank 1.
This lid member 22 has a lower engaging piece 22a formed at the lower end inserted into and engaged with the actual measurement of the lower strainer 7, and its both edges 22b, 22b.
As shown in FIG. 3, the engaging claws 22C (only one side is shown) are fitted in the engaging grooves 21a, 21a formed on both sides of the water passage groove 21 in a watertight manner, and are formed on both side surfaces of the upper part. It is removably attached to the lower strainer 7 by engaging the side surface of the water passage groove 21. In addition, the lower strainer 7
A large number of water passage holes 23 are formed at the left and right parts of the water passage groove 21. On the other hand, the upper strainer 8 has a flat plate shape, and a large number of water passage holes 24 are formed in the left and right sides except for the middle part and the belt, and a bulge part 25 is formed in the upper part, and the discharge hole is formed in the upper part. A water spout 26 is formed. Reference numeral 27 is a member having a trowel-shaped cross section and whose open side is placed on the back side below the bulging portion 25 of the upper strainer 8 to constitute the upper part of the pumping channel 19, that is, a water passing member. Part 2
7 has its upper end inserted into the lower opening 26a of the spout 26 as shown in FIG. At the same time, the step portions 27a, 27a formed on the outer surface are
As shown in the figure, the upper strainer 8 is detachably attached to the upper strainer 8 by engaging with an engaging claw portion 29° 29 formed on the upper strainer 8.

Next, a configuration for attaching the strainer member 9 to the washing tank 1 will be explained. Referring again to FIG. 2, lower strainer 1 - strainer 7
Fit the fitting holes 30.30 formed on both sides of the water passage groove 21 at the upper end into protrusions (not shown) formed on the left and right sides of the overflow drainage chamber 6, and It is attached to the bottom of the washing tub 1 by engaging the formed claws 31, 31 with the outer peripheral edge 16c of the bottom plate 16a of the outlet body 16. At this time, the lower end 20a of the road wall 20 is fitted into the fitting part 18 of the outlet body 16 from above, and is connected to the outlet 16b of the outlet body 16 in a butt state as shown in FIG. . On the other hand, in the upper strainer 8, the connecting pieces 32, 32 protruding from the lower end are inserted into the connecting holes 33, 33 formed at the upper end of the lower strainer 7, and the connecting pieces 32, 32 are inserted into the upper engaging holes formed at the upper end of the lid member 22. The piece 22d is attached to the back side, and the holding part 28 into which the water passage member 27 is inserted is inserted into the upper end of the road wall part 20 to connect the water passage member 27 and the water passage groove 21,
It is attached to the washing tank 1 by engaging the engaging claw parts 34 (only one side shown) formed on the left and right sides of the bulging part 25 with the not-shown engaging parts formed on the left and right sides of the overflow drainage chamber 6. .

Reference numeral 35 designates a lint filter made of a bag-like net attached to the spout 26, and the opening edge is held in a fixed shape by a filter frame 36.

With the above configuration, during washing when the pulsator 4 rotates, the rotation of the pulsator 4 generates a washing water flow in the washing tank 1 to flow the laundry, while the blades 5 of the pulsator 4 exert a pumping action in the pump chamber 3. The water in the washing tank 1 passes through the overflow drain chamber 6, is sucked into the pump chamber 3 through its water inlet 17, is discharged from the outlet 16b of the discharge outlet body 16, and is passed upward through one pumping channel. Lint filter 3
5 and is returned to the washing tank 1. As a result, when water passes through the lint filter 35,
The lint in the water is captured by the lint filter 35.

According to this embodiment, the side of the pumping channel 19 connected to the discharge port body 16 is constructed by integrally forming the channel wall portion 20 with the lower strainer 7. The inlet of the pumping channel 19 connected to the outlet 16b of the pump is integrally formed with the lower strainer 7, and therefore the dimensional accuracy and positional accuracy of the inlet can be improved by attaching a separate road wall body to the back of the lower strainer and connecting the pumping channel to the lower strainer. When installing the lower strainer 7 in the washing tank 1, the lower end part 20a of the road wall part 20 can be accurately fitted into the fitting part 18 of the outlet body 16 without having to adjust the position of the lower end part 20a. Therefore, the inlet portion of the pumping channel 19 can be connected to the outlet 16b of the discharge port body 16 with high accuracy.

Also, when cleaning the pumping channel 19, or when cleaning the overflow drainage chamber 6.
When removing foreign matter that has clogged the drain port 12 of the upper strainer 8, disengage the engaging claw portion 34 of the upper strainer 8 and
Remove the lower strainer 7 by pulling it upward, and then disengage the claws 31 and 31 of the lower strainer 7 to remove the lower strainer 7.
If you remove it upward, the water passage member 27 that constitutes one pumping channel can be removed.
Since both the lid member 22 and the upper strainer 8 and the lower strainer 7 can be removed from the washing tank 1,
Unlike the conventional method, which requires removing the strainer member and then removing the discharge port body and water pipe from the washing tank, the pumping channel 19 can be easily attached and detached.

In the above embodiment, the lid member 22 has its engaging claw 2.
2c, 22c can be easily removed from the lower strainer 7, and the water passage member 27 can be easily removed from the upper strainer 7 by releasing the engagement of the engaging claws 29, 29 and pulling it downward. Since it can be removed from 8, the water passage groove 21
Also, the water passage member 27 can be easily cleaned.

FIG. 5 shows another embodiment of the present invention, and the difference from the above embodiment is that, like the upper strainer 8, the lower strainer 37 has a large number of water passages (not shown) on both the left and right sides except for the integrated middle part. A road wall portion 38 is formed into a curved surface with holes and has a cross-sectional shape on the back side of the upper end of the lower strainer 37.
is integrally formed, and this is used as the inlet portion of the pumping channel 19 that is fitted into the fitting portion 18 of the discharge port body 16. A water passage member 39 similar to the water passage member 27 of the upper strainer 8 is detachably attached to the back side of the intermediate portion of the lower strainer 37 to form the lower part of the pumping channel 19. Even with this configuration, since the inlet portion of the pumping channel 19 is formed integrally with the lower strainer 7, the same effects as in the above embodiment can be achieved.

[Effects of the Invention] As is clear from the above description, the present invention provides a strainer member with a member for configuring a pumping channel in a removable manner, and a road wall portion is integrally formed on the back side of the strainer member. Since this path wall portion is connected to the outlet of the discharge port body, the dimensional accuracy of the inlet of the pumping channel or the positional accuracy with respect to the strainer member is improved, and the inlet of the pumping channel is connected to the outlet of the discharge port body. In addition to being able to connect with high accuracy, the members for forming the pumping channel can be removed from the washing tank together with the strainer member, thereby providing an effect that attachment and detachment can be easily performed.

[Brief Description of the Drawings] Figures 1 to 4 show one embodiment of the present invention, in which Figure 1 is an exploded perspective view, Figure 2 is a longitudinal side view, and Figure 3 is a second embodiment of the present invention.
A cross-sectional view along the line ■-■ in the figure, Figure 4 is rv - in Figure 2.
FIG. 5 is a sectional view taken along line rv, and FIG. 5 is a longitudinal sectional side view of essential parts showing another embodiment of the present invention. In the figure, 1 is a washing tank (tank), 6 is an overflow drainage chamber, 7 is a lower strainer, 8 is an upper strainer 1 to strainer, 9 is a strainer member, 16 is a discharge port body, 16b is an outlet, and 18 is a fitting part , 19
20.38 is a road wall portion, 21 is a water passage groove, 22 is a cover member, and 27.39 is a water passage member. Figure 1 Figure 2

Claims (1)

[Claims] 1. An overflow drainage chamber is formed separated by a removable strainer member on the side of the tank, and into this overflow drainage chamber, the inside of the tank is discharged from a pump chamber formed at the bottom of the tank through a discharge port body. A pumping channel is provided for passing the water upward and returning it into the tank, and a member for configuring the pumping channel is removably provided on the strainer member, and a member for forming the pumping channel is removably attached to the strainer member, and the discharge port body The connection side with the strainer member is configured by integrally forming a path wall portion having a substantially U-shaped cross section on the back side of the strainer member, and this path wall portion is connected to the outlet of the discharge port body. A washing machine with special features.